When running PHP functional tests on a custom module, I end up with the following Exception error:
There was 1 error:
1) Drupal\Tests\custom_module\Functional\CustomModuleTest::testCustomTest
Exception: Deprecated function: Creation of dynamic property Drupal\simplenews\Mail\MailEntity::$uid is deprecated
Drupal\simplenews\Mail\MailEntity->setContext()() (Line: 235)
In my test, along with Ultimate Cron interface, I connect to the admin cron page, and click in a given cron job Run link:
$this->drupalGet('admin/config/system/cron/jobs');
$assert_session->statusCodeEquals(200);
$this->clickLink('Run');
$assert_session->pageTextContains('Cron job Sends newsletters (Simplenews) was successfully run.');
It appears MailEntity uses uid as a dynamic property, which was deprecated as of PHP 8.2+.
We need to add the AllowDynamicProperties to the MailEntity to fix the Deprecation warning (Exception error in the PHPUnit context).
Patch adding the AllowDynamicProperties property to the MailEntity class.
It seems to be fixed in 4.x. If you still see a problem on 4.x then please reopen the issue.
/**
* User ID used for account switcher.
*
* @var int
*/
protected $uid;